Wheel-harrow



(No Model.)

0. MURRAY.

WHEEL HARROW7 No. 268,267. Patented Nov. 28, 1882.

Filf

UNITED STATES ATENT OFFICE.

CRAIG MURRAY, OF KALAMAZOO, ASSIGNOR TO SPENCER J. WING, OF

' SOHOOLGRAFT, MICHIGAN.

WHEEL-HARROW.

SPECIFICATION forming part of Letters Patent No. 268,267, dated November 28, 1882.

Application filed July 3, 1882. (No model.)

To all whom it may concern:

Be it known that I, CRAIG MURRAY, of Kalamazoo, in the county of Kalamazoo and State of Michigan, have invented certairrnewsuch as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to wheel-barrows, the object being to provide a barrow which will combine strength and economy ot'construction with ease ofoperation and durability in use.

The invention consists in theimproved construction and combinations of parts hereinafter fully set forth, and pointed out in the claims.

In the drawings, Figure 1 represents a side elevation'of a harrow constructed in accord ance with my invention. Fig.2isa plan view ot'the same, partially broken away. Figs. 3, 4, 5, 6, 7, 8, 9, and 10 represent parts in detail.

B represents the axle of the harrow, to each end of which is secured a crank-arm, a, by means of a bolt, A, passinglongitudinall v into the axle, which latter is slotted to receive a nut, a or the crank-arms maybe secured in any other suitable manner.

To the under side of the axle B are securely bolted any desired number of curved or straight cross-arms, a, for supporting the tooth-shafts D of the machine. As shown in the drawings, I prefer to employ four of these arms a-one at each end of the axle B, and two near the center of the latter. The tootlrshafts are secured to the ends of these arms by means of clips and bolts d (1. These shafts D may be formed of onepieceextendingentirelyacrossthe machine, or they may be of two separate sections, as shown in Fig. 2, and the barrow-teeth are secured thereto in the manner hereinafter de scribed.

0 represents a sector, provided with an inweirdly-projecting flange, c, by means of which the sector is secured (one at each end of the axle) to the axle by the same bolt or bolts that,

secure the end cross-arm,a, thereto. The sectors are each arranged between the end of the axle and the crank-arm a, and are also held by the bolt A, which secures the crank-arm in place.

H represents a lifting-lever, consisting of two parallel bars, h h, supporting at their upperends an inwardly-projecting handle, 0, while the lowerends, nn,ofsaid bars are curved or pronged to adapt them to enter slots or grooves 11/ a, formed in the upper end of the crank-arm a.

Between the bars 12 n of the lever is arranged a sliding dog, c, flanged or grooved to retain it in position and provided with a rod, 1", which extends through a perforated bracket, r, secured to the bars, and terminates in a bent hau- (lle,f. A spiral spring, r surrounds the upper end of the rod 1', the lower end of said spring bearing against a flange or collar, T of the rod, while the opposite end of the spring bears against the bracket r.

00 represents the spindle of the axle-one at each end--upon which the carrying-wheels are mounted.

P represents a two-part pole, secured to the axle B by means of metallic strips 12, embracing the axle.

S represents a seat, secured upon a support, 9, whose lower end is bolted securely between the two central cross-arms,a a. The seat-support is further held by means of a loop or bail, 11, which surrounds the support, and whose ends are secured "by bolts to the axle, while the support g is secured to said bail by means of a bolt, a, passing through the support and bail.

41 represents a device or draft-link, secured to the under sides of the forward ends of the center cross-arms.

L L represent levers, secured by arms Z to the forward tooth-shaft D, thejoints of said levers beingjust in rear of the axle B. Said levers are also secured by arms Z to the rear tooth-shaft D, and are adapted to be held in an elevated position to hold the teeth clear of the ground by bent hooks 3 3 pivoted to the upper side of the axle.

Figs. 5, 7, and 10 represent the devices for securing the teeth tand the arms Zto their shaft-s. The reverse end of each tooth and arm passes about half around the shalt, and the shank portion is provided with a slot, 00, to receive a bolt, and a hole or slot, m to receive the pin 6 of a clamping-washer, 'w. Said washer is curved or semicircular, straight or angularin form, to conform to the shape of the shaft, and is serrated on itsinner face to better adapt it to retain its position, and is slotted for adjusting the teeth and arms. The slotted or perforated end of each tooth and arm is secured by the engagement therewith of the lug or pin 6 of the washer, which latter is then secured by a bolt, z, passing through the slot in said washer and through the shaft and the slot m of the tooth or arm, and secured by a nut, 00 By the means thus described the teeth and arms are securely held in place, but may be readily removed, when broken or unduly worn, by simply removing the bolt t.

The barrow, when constructed as above described, may be adjusted relative to the ground by means of the levers H, and the teeth may be raised by the levers L L and held in raised position by the hooks y 3 as described, the hooks being suitably bent to engage'or support said levers. Said levers L L are provided with a series of perforations, 00, Fig. 1, to admit of the adjustment of the rear arm, I, to change the pitch of the teeth.

In Fig. 1, J represents a seeder supported on each side by an arm, m, the latter being secured to the front end of the adjacent arms D by the same bolt, 6?, that fastens the clip d thereto.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a harrow, the combination, with the axle, of a crank-arm carrying a spindle, a sector, and a two-part lever having its inner end curved or pronged and adapted to enter curved slots or grooves of the crank-arm, substantially as set forth.

2. In a harrow, the combinatiomwith the ecaecv I with a hole at its rear end, a perforated wash-' er provided with a serrated face adapted to fit against the tooth-supporting shaft and provided with a lug that enters the hole in the tooth, and a fasteningbolt that passes through the washer, shaft, and a hole in that portion of the tooth which is on the side of the shaft opposite the washer, substantially as set forth.

4:. The combination, with the crank-axle and sector, of a liftinglever consisting of two parallel bars having curved ends, secured in cor respondingly curved grooves in thecrank-arm, and a sliding dog arranged between said bars and provided with a handle, substantially as set forth.

5. The combination, with the tooth-shafts and an operating-lever, of an arm, I, a washer provided with a serrated face that fits against the tooth-shaft, and is provided with a lug that enters a hole in one end of said arm, and a fastening-bolt that passes through the washer, tooth-shaft, and said arm, substantially as set forth. I. V, V e.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

CRAIG M URRAY.

Witnesses:

HENRY T. SMITH, THERM F. GIDDINGS. 

